What happens after a frater has imbibed both a large quantity of alcohol and spicy food in the same evening. After said individual has passed out, the ferocious amount of feces which is launched into his pants while unconcious is both sickening and amazing. This is called a BigMac Attack.

Dude, I drank 18 beers and a bottle of Jaeger at the ChiliFest. I woke up in a field and must have had a BigMac Attack, because my pants were filled with crap and I had lesions on my cheeks.